Some cures for canine bad breath include professional cleaning, changes to the dog's diet, or medications. Some toys and treats help to prevent halitosis, as does brushing the dog's teeth, says WebMD.
Owners should consult a veterinarian, as bad breath has health-related causes in some cases. When using toys to prevent bad breath, use hard toys that are safe, and give only well-researched treats. Owners who choose brushing the dog's teeth should do so daily, using canine paste. Human tooth paste is hard on a dog's stomach, says WebMD. Pet Smart sells dog tooth brushes, toothpaste and other canine oral care products, according to Pet Smart.